HK4GSO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HK4GSO, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-04 and 2026-09-04.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 37 FT8 messages attributed to HK4GSO as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 40 m (46%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-04 01:11 UTC
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -16 to -11 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 0.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with HK4GSO in decoded directed-looking exchanges:
Most frequent locator attributed to HK4GSO
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- FJ26 · 23 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 9,937 km (approx.)
- Last such locator decoded
- 2026-09-04 00:56 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | HK4GSO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-05 01:13 | 80m | - / - | ON6AA | +14 / - | 4 | Partial capture |
| 09-04 01:05 | 40m | -13 / - | RI1FJL | - / -19 | 10 | Partial capture |
| 09-04 01:04 | 40m | - / - | RV3TV | -4 / - | 5 | Partial capture |
| 09-04 00:52 | 40m | -12 / - | RI1FJL | - / - | 7 | Partial capture |
| 08-29 01:03 | 40m | - / -18 | ON6AA | +15 / - | 2 | ✓ Closing fragment |
| 08-29 00:59 | 40m | - / - | ON6AA | +12 / - | 3 | Partial capture |
| 08-26 20:38 | 10m | - / -14 | DO2SHJ | -2 / - | 4 | ✓ Closing fragment |
| 07-26 00:23 | 40m | - / -17 | ON6AB | 0 / - | 3 | ✓ Closing fragment |
| 07-25 23:57 | 40m | - / - | F1IQH | -11 / - | 2 | Partial capture |
| 07-25 23:57 | 40m | - / -10 | F1PBZ | -7 / - | 2 | ✓ Closing fragment |
| 07-23 01:25 | 80m | - / - | SP7MOQ | +9 / - | 4 | Partial capture |
| 07-23 01:24 | 80m | - / - | F4BYA | +7 / - | 2 | Partial capture |
| 07-23 01:20 | 80m | - / -11 | W4IEE | -6 / - | 2 | Partial capture |
| 07-23 01:06 | 80m | - / - | F4BYA | +10 / - | 6 | Partial capture |
| 07-23 01:06 | 80m | - / - | OH5LF | +4 / - | 3 | Partial capture |
| 07-19 00:03 | 40m | - / - | DG7BST | -15 / - | 8 | Partial capture |
| 07-18 23:52 | 40m | - / -18 | SP6NIV | -11 / - | 4 | ✓ Closing fragment |
| 07-11 01:10 | 40m | - / - | UA3QRH | -10 / - | 4 | Partial capture |
| 07-11 01:00 | 40m | - / -14 | RN6MA | -17 / - | 2 | ✓ Closing fragment |
| 07-11 00:43 | 40m | - / - | ON7KEI | -21 / - | 3 | Partial capture |
| 07-04 00:22 | 20m | -13 / -7 | K2F | -24 / -8 | 13 | ✓ Full exchange observed |
| 07-04 00:09 | 20m | -15 / +1 | K2F | -22 / +3 | 10 | ✓ Full exchange observed |
| 07-03 20:36 | 20m | - / -20 | <...> | -8 / - | 2 | Partial capture |
| 07-03 11:47 | 20m | - / -18 | TM13COL | -20 / - | 2 | Partial capture |
| 06-24 23:57 | 40m | - / -9 | DH1KJ | -4 / - | 3 | Partial capture |
| 06-24 23:42 | 40m | - / - | R7OP | -9 / - | 2 | Partial capture |
| 06-24 23:40 | 40m | - / - | F4ENK | +4 / - | 2 | Partial capture |
| 06-24 23:31 | 40m | - / - | F4ENK | +2 / - | 3 | Partial capture |
| 06-24 23:29 | 40m | - / - | R4RM | 0 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 013145 +12 624 HK4GSO DF6PW -19
UTC dB Audio Message 010830 +12 2849 HK4GSO F4BYA JN19 (x3) 012030 -7 554 HK4GSO W4IEE EL89 (x2) 012430 +9 2850 HK4GSO F4BYA JN19 012530 +14 1931 HK4GSO SP7MOQ KO10 012530 +5 2849 HK4GSO F4BYA JN19 012630 +10 1931 HK4GSO SP7MOQ KO10 (x3) 011330 +14 1005 HK4GSO ON6AA JO11 (x4)
UTC dB Audio Message 010400 -8 1167 HK4GSO RV3TV KO91 (x3) 010545 -11 1223 RI1FJL HK4GSO R-19 (x3) 010700 -5 1167 HK4GSO RV3TV KO91 (x2) 010845 -16 1630 RI1FJL HK4GSO R-19 (x7)
UTC dB Audio Message 203815 +0 1359 HK4GSO DO2SHJ JN49 (x4)
UTC dB Audio Message 001330 -22 1594 HK4GSO K2F RR73 001345 -16 1755 K2F HK4GSO 73 (x11) 002800 -24 1593 HK4GSO K2F -07 002815 -13 1118 K2F HK4GSO R-08 (x2)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee